EP1452649A1 - Water-tight cover for a manhole - Google Patents

Abstract

The device has a frame (1) with a peripheral channel (3) delimited between external and internal vertical walls (4,5) of the frame, so that a manhole cover (2) rests on the internal vertical wall of the channel. The internal vertical wall collects the water falling on the cover and evacuates it towards main drain basin of water situated at exterior of the frame and in communication with the channel.

Description

The present invention relates in a way general a watertight sealing device of a opening, such as manhole cover.

It is more particularly intended for a device for closing an opening, of the type comprising a frame bordering the opening and one or several removable frame closure pads resting on it.

In their closed position of the frame, the pads rectangular are arranged side by side to form a flat cover leaving games of a between the adjacent buffers and between the peripheral edges of these buffers and the edge peripheral of the frame bordering the opening.

However, such a shutter device has for major drawback that rainwater gets into opening through the aforementioned games, risking damage one or more organs that may be present in the manhole, such as for example a valve for checking a buried pipeline.

The object of the present invention is to eliminate the above disadvantage by proposing a device watertight closure of an opening, such as manhole cover, including a bordering frame the opening and one or more removable pads of closing the frame resting on it, and which is characterized in that the frame includes a channel peripheral delimited between the vertical walls external defining the sides of the frame and walls vertical internal of the frame parallel to the walls external verticals and in that the buffer (s) rest on the internal vertical walls of the channel so that the latter collects the water falling on the tampon (s) and discharges it to a water collector located outside the frame in communication with the laugh.

When using multiple pads adjacent juxtaposed closing of the frame resting on the corresponding internal vertical walls of the laugh, we provide a gutter having its ends open, mounted transversely between two walls vertical internal opposite of the channel communicating with the latter by its open ends and positioned vertically below the junction between two adjacent buffers so as to also collect the water passing through this junction to evacuate it in the channel.

The gutter removably rests at its ends respectively on the two opposite walls of the channel and is retained transversely to these two walls by two legs respectively attached to the ends of the bottom of the gutter protruding perpendicularly below this background and each engaged in the channel near the internal face of the corresponding internal vertical wall of the channel.

The gutter is removably attached to the two walls vertical internal of the channel and can be constituted by a flat bottom U-shaped profile.

A conduit is fixed through one of the walls vertical external of the frame by opening at the bottom of the laugh to put the latter in communication with the water collector.

In the case of larger apertures and / or a greater number of adjacent buffers and juxtaposed for closing the frame resting on the walls corresponding internal vertical channels, we provides at least one open gutter-shaped beam at its ends, mounted transversely between two opposite internal vertical walls of the channel in communicating with the water collector at its ends open and two adjacent pads lie side by side on the beam on either side of it, so their junction is located above the gutter of the beam so that it collects the water passing through through this junction and evacuates it towards the collector of water.

When using at least two other pads adjacent juxtaposed closing of the frame arranged on the corresponding internal vertical walls of the laughs by being arranged parallel to the two buffers precedents adjacent to and juxtaposed with these last, these two other pads also rest side by side side by side on the gutter-shaped beam sized at this effect and on either side of it so their junction is located above the gutter of the beam so that it collects the water passing through through this junction and evacuates it towards the collector of water and two gutters having their open ends, mounted transversely substantially in extension of one another between the two opposite internal vertical walls of the channel and the beam by communicating through their open ends with the gutter and the gutter of the beam, each transverse gutter being located vertically below of the junction between two parallel buffers, so that the two gutters collect the water passing between the junctions of the parallel buffers and evacuates it towards the water collector through the channel and the gutter of the beam.

The gutter-shaped beam is removable fixed at its ends respectively to two boxes open in upper parts in which open the ends of the gutter of the beam so that the boxes collect the water circulating in this gutter, each water recovery box being fixed to the frame under the channel, the bottom of which is open above of the box so that it also collects the water circulating in the channel.

Each end of the beam is fixed by installation in the corresponding wall of the box water recovery and the beam has several bars fixed between the walls of the gutter of the beam transversely to these to allow manually place the beam on the frame or remove from the latter.

Each water recovery box is connected to the external water collector.

Each gutter rests detachably by its ends respectively on the internal vertical wall corresponding channel and vertical wall beam and is retained transversely to these walls by two integral legs respectively from the ends of the bottom of the gutter in protruding perpendicularly below this bottom, one of the legs being engaged in the channel proximity of the internal face of the vertical wall corresponding internal and the other tab being engaged in the beam near the inside of the wall corresponding vertical of the beam.

The gutter is removably attached to the two walls vertical of the channel and the beam and can be consisting of a flat bottom U-shaped profile.

Each of the pads is a rectangular plate resting on the internal vertical walls of the channel and, if necessary, on the walls of the beam, by stiffening ribs integral with the face bottom of the buffer plate perpendicular to this so that each stamp is in flush with the upper edges of the walls vertical external of the frame.

Each buffer plate is substantially curved at right angles to two of its opposite edges, so that engage in the channel and, if necessary, in the beam in closed position of the frame.

• la figure 1 est une vue en perspective éclatée d'un dispositif d'obturation d'une ouverture, telle que regard de chaussée, suivant un premier mode de réalisation de l'invention ;
• la figure 2 est une vue de dessus du dispositif de la figure 1 sans les tampons ;
• la figure 3 est une vue agrandie en coupe suivant la ligne III-III de la figure 2 ;
• la figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 2 ;
• la figure 5 est une vue en perspective d'une gouttière faisant partie du dispositif de l'invention ;
• la figure 6 est une vue en perspective de dessous d'un tampon du dispositif de l'invention ;
• la figure 7 est une vue en perspective d'un dispositif d'obturation à quatre tampons de fermeture juxtaposés suivant un second mode de réalisation de l'invention ;
• la figure 8 est une vue partielle en perspective agrandie du dispositif de la figure 7 avec l'un des tampons retiré ;
• la figure 9 est une vue en perspective du dispositif de la figure 7 sans les tampons ;
• la figure 10 est une vue partielle agrandie d'une partie du dispositif de la figure 9 ;
• la figure 11 est une vue en perspective d'une poutre en forme de gouttière faisant partie du dispositif des figures 7 à 10 ;
• la figure 12 est une vue en perspective agrandie suivant la flèche XII de la figure 10 ;
• la figure 13 est une vue en coupe dans le plan vertical contenant la ligne XIII-XIII de la figure 10 ;
• la figure 14 est une vue partielle en perspective représentant l'extension du dispositif d'obturation des figures 7 à 13 à un plus grand de tampons ; et
• la figure 15 est une vue de dessus d'un dispositif d'obturation à cinquante-six tampons de fermeture de l'ouverture.

The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended drawings given solely by way of example illustrating several modes. of the invention and in which:

• Figure 1 is an exploded perspective view of a device for closing an opening, such as manhole cover, according to a first embodiment of the invention;
• Figure 2 is a top view of the device of Figure 1 without the pads;
• Figure 3 is an enlarged sectional view along line III-III of Figure 2;
• Figure 4 is a sectional view along line IV-IV of Figure 2;
• Figure 5 is a perspective view of a gutter forming part of the device of the invention;
• Figure 6 is a perspective view from below of a tampon of the device of the invention;
• Figure 7 is a perspective view of a closure device with four juxtaposed closure pads according to a second embodiment of the invention;
• Figure 8 is an enlarged partial perspective view of the device of Figure 7 with one of the pads removed;
• Figure 9 is a perspective view of the device of Figure 7 without the pads;
• Figure 10 is an enlarged partial view of part of the device of Figure 9;
• Figure 11 is a perspective view of a gutter-shaped beam forming part of the device of Figures 7 to 10;
• Figure 12 is an enlarged perspective view along arrow XII of Figure 10;
• Figure 13 is a sectional view in the vertical plane containing the line XIII-XIII of Figure 10;
• Figure 14 is a partial perspective view showing the extension of the closure device of Figures 7 to 13 to a larger buffer; and
• Figure 15 is a top view of a closure device with fifty-six plugs closing the opening.

Figures 1 to 6 show a first mode of realization of the device of the invention allowing sealing an opening, such as pavement look.

This device includes a frame 1 bordering the opening and one or more removable pads 2 of closing of the frame 1 resting on the latter.

In this case, three buffers 2 are used to close side 1 side by side, but there it is understood that the invention can be applied to a single buffer or to buffers of a different number of three.

Frame 1 includes a peripheral channel 3 delimited between the external vertical walls 4 defining the sides of frame 1 and vertical walls internal 5 of frame 1 parallel to vertical walls external 4.

As is clear from Figures 3 and 4, the walls 4, 5 and the bottom wall 6 of the channel 3 have a bottom U-shape in cross section substantially flat to form the channel 3 and the walls external 4 are surmounted by rectangular plates peripherals 7 fixed to the corresponding internal faces walls 4, for example by welding, so that the plates 7 have an external wall configuration higher than the peripheral walls internal 5 of frame 1.

The device further comprises two gutters identical 8, each having its two open ends, and mounted transversely between two vertical walls internal opposites 5 of the channel 3 by communicating with the latter by their open ends.

Each gutter 8 is constituted by a profile in U with flat bottom and rests detachably by its ends respectively on the two opposite walls 5 being retained transversely to these two walls by two lugs 9 integral with the face of the bottom wall 10 opposite the side walls 11 of the gutter 8 in projecting perpendicularly from this face. Each tab 9 is fixed in the vicinity of the end of the gutter 8 and enters the channel 3 near the internal face of the internal vertical wall corresponding 5 of the channel 3.

Each gutter 8 can be removably attached to the frame 1 for example by sets of screws and nuts ears 12, only one of which is shown in phantom in Figure 3, the screw passing through one end corresponding of the gutter 8 and a horizontal leg support 13 secured, for example by welding, of the corresponding wall 5 perpendicular thereto in protruding into the defined rectangular opening by the walls 5. The support tab 13 is arranged substantially flush with the upper edge of the corresponding internal wall 5.

A conduit 14 is fixed through one of the external vertical walls 4 of the frame 1 opening at bottom of channel 3 and projecting outside the frame 1 by being connected to a water collector (not represented).

Each buffer 2 is constituted by a plate rectangular 2a made of galvanized steel, steel stainless or aluminum. The edges 2b in the direction of the width of the plate 2a of the pad 2 are curved substantially at right angles from the inner side of the plate 2a which further comprises ribs or walls stiffening 2c with curvilinear edges projecting of the internal face of the plate 2a perpendicular to this and in a direction perpendicular to the edges curved 2b. The stiffening walls 2c, in the four cases present, are matched and combined at their ends to form 2d steps allowing each pad 2 to rest respectively on the two opposite walls 5 of the channel 3 for close the frame 1 so that the plate 2a of the buffer 2 either flush with the upper edges of the plates 7, the curved edges 2b being located at proximity of the corresponding internal faces of the plates 7.

If necessary, each tampon can be removable fixed to frame 1 by fixing screws anchored to other lugs 13 integral with the opposite walls 5 between two gutters 8.

When the three buffers 2 close the frame 1, so they define a horizontal coverage of adjacent plates juxtaposed 2a and flush with the upper edges of the plates 7.

In addition, in their closed position, the junctions between adjacent buffers 2 are located plumb above the gutters 8 respectively.

Under these conditions, the rainwater that passes through the games remaining between on the one hand the junctions of the adjacent buffers 2 and on the other hand the edge buffer device 2 and vertical walls 4, flow into the gutters 8 and the channel 3 to be evacuated to the external collector at through the exhaust duct 14.

In case of access to the manhole after removing the buffers 2, the opening defined by frame 1 can be completely cleared by simply removing the 8 gutters of this frame.

Of course, if only one buffer is used closing a corresponding rectangular frame, none gutter 8 is not necessary and only the channel 3 collects rainwater passing through the game remaining between frame 1 and the peripheral edges of the stamp 2.

Figures 7 to 13 show a second mode of creation of a waterproof cover with several buffers resting on a frame with a larger opening than that of the first embodiment.

According to this second embodiment, the frame 1 is of a general structure identical to the framework of the first embodiment, that is to say that it comprises a peripheral channel 3 delimited by vertical walls external 4 and more internal vertical walls low height 5 of this frame.

In this case, identical buffers 2 are four in number and are mutually adjacent and juxtaposed to their closed position of frame 1, but it is understood that their number can vary as we will see it later.

A gutter-shaped beam 15 open to its ends is mounted transversely between two walls corresponding internal verticals 5 of the channel 3, in this case those extending along the length of the frame 1. The beam 15 is thus located in the plane median of frame 1 transverse to longitudinal walls of frame 1.

The beam 15 is removably attached to its ends respectively to two boxes 16 open to their upper parts and into which open the ends of the gutter of the beam 15.

Each box 16, of general shape parallelepiped, is tightly fixed under the bottom wall 6 of the channel 3 in the middle of the length of the corresponding wall 4 of the frame 1 and the wall of bottom 6 is open just above the vertical box 16 to pour rainwater from the channel 3 on each side of the box 16. Two partitions 17 are fixed perpendicularly to the bottom wall 6 of each side of the box 16 and are inclined relatively to the internal walls 5 of the channel 3 so as to deflect the water flow to the wall 4 and pour the water into box 16.

The vertical wall 16a of the box 16 located on the side of the opening of the frame 1 has a cutout 16b defining with the cutout 5a of the wall 5 produced in the same plane above the cutout 16b, a T-shaped opening into which a corresponding end part of conjugate form of the beam 15 whose open end thus penetrates into the box 16. The latter comprises integral with the wall 16c opposite wall 16a through conduit 18 the wall 16c opening into the box 16 in the vicinity of the bottom wall 16d thereof. The conduit 18 is connected to the external water collector.

The beam 15 has several bars 19 fixed between the side walls 15a of the beam 15 transversely to these to allow gripping beam 15 manually and fix it by embedding its ends respectively in the two boxes opposite 16 or remove it from frame 1 to release completely opening it.

Each buffer 2, of dimensions greater than buffers 2 of the first embodiment, is of a general structure identical to these, except that the stiffening walls or ribs 2c are straight and separated from each other parallel to the longitudinal direction of pad 2.

Each stamp 2 has 2nd handles of gripping it.

Once frame 1 is sealed, beam 15 is arranged transversely between the two walls longitudinal 5 by embedding its ends respectively in the two boxes 16, then the pads 2 are arranged on the frame 1 parallel in the direction from their lengths to the longitudinal walls 5 in resting by the ends of their ribs of stiffening 2c on the one hand on transverse walls 5 extending across the width of the frame 1 and on the other hand on the side walls 15a with flanges horizontal of the beam 15. Thus, each buffer 2 has one of its curved transverse edges 2b engaging in the corresponding part of transverse channel 3 and its other opposite curved edge engaging the beam gutter 15.

The two adjacent buffers 2 located on each side of the longitudinal wall 4 of the frame 1 have their junction plumb above the beam 15.

The device of this second embodiment also includes two gutters 8, each identical to the dimensions close to the gutter 8 of the first mode of realization, and mounted between the beam 15 and the walls opposite transverse 5 of the channel 3 and in alignment on either side of the beam 15, so that its open ends open into the gutter of the beam 15 and in the channel 3. Each gutter 8 is held transversely to the beam 15 and to the wall transverse 5 by its two legs 9 engaged on the one hand in beam 15 near the internal face of its corresponding side wall 15a and on the other hand in the gutter 3 near the internal face of the wall corresponding cross 5.

Each gutter 8 is further removable. plumb below the junction of the two buffers adjacent and extending in a direction parallel to the longitudinal walls 4 of frame 1.

Rainwater passing through the junction two adjacent buffers 2 perpendicular to the wall transverse of frame 1 are collected by the gutter corresponding 8 and dumped at each end of this gutter respectively in the channel 3 and the beam 15. In addition, rainwater passing through of each junction of the two adjacent buffers 2 perpendicular to the longitudinal wall 4 of the frame 1 are recovered by the beam 15 and discharged, at the same time that rainwater from gutters 8, in the recovery boxes 16 to be then discharged to the water collector.

As for rainwater passing through the games between the peripheral walls 4 of the frame 1 and the edges adjacent devices of closure pads 2 they circulate in channel 3 to be evacuated in two water recovery boxes 16 and towards the water collector.

Figure 14 is an alternative embodiment of the device of the second embodiment and according to which a second gutter-shaped beam 15 is added parallel to the first at a distance of the latter allowing the mounting of two buffers adjacent between these two beams in direction transverse to these, other adjacent buffers, not shown, being also mounted between the second beam 15 and the transverse wall 5 of the channel 3 as in the second embodiment.

Thus, by adding other beams 15 and by realizing, if necessary, the frame in several elements assembled to each other, for example by bolting, it is possible to form covers at as many buffers as needed, and Figure 15 shows, as example, a cover with fifty six pads mounted on a frame 1 by a set of parallel beams 15 with gutters 8 transverse to beams 15 plumb below and below respectively junctions between adjacent buffers to put them in communication in particular with the adjacent beams of so as to evacuate rainwater to the different water recovery boxes connected by a network appropriate of conduits 14 to the external collector 20.

The device of the invention thus makes it possible to ensure perfect sealing of manhole openings without use seals unlike known devices until now. In addition, to access the look after removing the pads, the opening can be completely cleared by simply removing the gutters and removable beams of the frame. In addition, the device of the invention is designed to satisfy all resistance classes currently in force.

Claims (16)

Watertight closure device for an opening, such as a manhole cover, comprising a frame (1) bordering the opening and one or more removable pads (2) for closing the frame (1) resting thereon ci, characterized in that the frame (1) comprises a peripheral channel (3) delimited between the external vertical walls (4) defining the sides of the frame and internal vertical walls (5) of the frame parallel to the external vertical walls (4) and in that the pad (s) (2) rest on the internal vertical walls (5) of the channel (3) so that the latter collects the water falling on the pad (s) (2) and discharges it towards a water collector located outside the frame (1) in communication with the channel (3). Device according to claim 1, characterized in that it further comprises, when using several adjacent juxtaposed buffers (2) for closing the frame (1) resting on the corresponding internal vertical walls (5) of the channel ( 3), a gutter (8) having its open ends, mounted transversely between two opposite internal vertical walls (5) of the channel (3) by communicating with the latter by its open ends and positioned vertically below the junction between two adjacent buffers (2) so as to also collect water passing through this junction to discharge it into the channel (3). Device according to claim 2, characterized in that the gutter (8) rests removably by its ends respectively on the two opposite walls (5) of the channel (3) and is retained transversely to these two walls (5) by two tabs ( 9) respectively secured to the ends of the bottom (6) of the gutter (8) projecting perpendicularly below this bottom and each engaged in the channel (3) near the inner face of the corresponding inner vertical wall (5 ). Device according to claim 2 or 3, characterized in that the gutter (8) is removably attached to the two internal vertical walls (5) of the channel (3). Device according to one of claims 2 to 4, characterized in that the gutter (8) consists of a U-shaped profile with a flat bottom. Device according to one of the preceding claims, characterized in that a conduit (14) is fixed through one of the external vertical walls (4) of the frame (1) by opening at the bottom (6) of the channel ( 3) to put the latter in communication with the water collector. Device according to claim 1, characterized in that it further comprises, when using at least two adjacent juxtaposed buffers (2) for closing the frame (1) resting on the corresponding internal vertical walls (5) of the channel (3), at least one beam (15) in the form of a gutter open at its ends, mounted transversely between two opposite internal vertical walls (5) of the channel (3) communicating with the water collector at its ends open and in that the two adjacent buffers (2) rest side by side on the beam (15) on either side of it so that their junction is located above the gutter of the beam (15 ) so that it collects water passing through this junction and discharges it towards the water collector. Device according to claim 7, characterized in that , when at least two other adjacent juxtaposed buffers (2) for closing the frame are used, arranged on the corresponding internal vertical walls (5) of the channel (3) being arranged parallel to the two preceding buffers (2) adjacent to and juxtaposed with the latter, these two other buffers (2) also rest side by side on the beam (15) in the form of a gutter sized for this purpose and on both sides other of the latter, so that their junction is situated above the gutter of the beam (15) so that it collects the water passing through this junction and discharges it towards the water collector, and in that it also comprises two gutters (8) having their open ends, mounted transversely substantially in extension of one another between the two other opposite internal vertical walls (5) of the channel (3) and the beam (15) communicating ant by their open ends with the channel (3) and the gutter of the beam (15), each transverse gutter (8) being located vertically below the junction between two parallel buffers (2), so that the two gutters (8) collect the water passing between the junctions of the parallel buffers (2) and evacuate it towards the water collector via the channel (3) and the gutter of the beam (15) . Device according to claim 7 or 8, characterized in that the gutter-shaped beam (15) is removably fixed at its ends respectively to two boxes (16) open in upper parts into which the ends of the gutter of the beam open ( 15) so that the boxes (16) recover the water circulating in this gutter, each water recovery box (16) being fixed to the frame (1) under the channel (3) whose bottom (6) is open above the box (16) so that it also collects the water circulating in the channel (3). Device according to claim 9, characterized in that each of the ends of the beam (15) is fixed by embedding in the corresponding wall (16a) of the water recovery box (16) and the beam (15) comprises several bars (19) fixed between the gutter walls (15a) of the beam (15) transversely to these to allow the beam (15) to be placed manually on the frame (1) or to remove it from the latter. Device according to claim 9 or 10, characterized in that each box (16) is connected to the external water collector. Device according to one of claims 8 to 11, characterized in that each gutter (8) rests removably at its ends respectively on the corresponding internal vertical wall (5) of the channel (3) and the corresponding vertical wall (15a) of the beam (15) and is retained transversely to these walls (5,15a) by two legs (9) respectively secured to the ends of the bottom (6) of the gutter (8) projecting perpendicularly below this bottom, l 'one of the legs (9) being engaged in the channel (3) near the inner face of the corresponding internal vertical wall (5) and the other leg (9) being engaged in the beam (15) near the internal face of the corresponding vertical wall (15a) of the beam (15). Device according to claim 12, characterized in that the gutter (8) is removably attached to the two vertical walls (5,15a) of the channel (3) and the beam (15). Device according to one of claims 8 to 13, characterized in that the gutter (8) consists of a U-shaped profile with a flat bottom. Device according to one of the preceding claims, characterized in that each of the buffers (2) is a rectangular plate (2a) resting on the internal vertical walls (5) of the channel (3) and, if necessary, on the walls (15a) of the beam (15), by stiffening ribs (2c) integral with the underside of the buffer plate (2a) perpendicular thereto so that each buffer (2) is flush with the edges upper vertical outer walls (4) of the frame (1). Device according to claim 15, characterized in that each buffer plate (2a) is curved substantially at right angles to two of its opposite edges, so as to engage in the channel (3) and, if necessary, in the beam (15) in the closed position of the frame (1).

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